Solve the problems: 1. The radius of a circle with area A is approximately √ 3 . The area of a circular mouse Pad is 51 square inches. Estimate its radius to the nearest integer. 2. What is the diagonal of the square? Hint: Copy the square and its diagonal onto a piece of transparent paper. Rotate it about zero on the number line so that the diagonal aligns with the number line. Use the number line to estimate the diagonal of the square.​